Question

5y²-6y-1=0
Resultado:1/5 , 1

Answer 1

5y²-6y-1=0
Δ=(-6)²-4*5*(-1)
Δ=36+20
Δ=56

y'=(6+8)/10= 14/10= 7/5
y"=(6-8)/10= -2/10= -1/5